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TI-2016-08021 Aliases CVE-2016-9901GHSA-6g72-x2jp-6592

Improper input validation in Mozilla Firefox ESR

Priority MEDIUM 47CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat.

Summary

HTML tags received from the Pocket server will be processed without sanitization and any JavaScript code executed will be run in the "about:pocket-saved" (unprivileged) page, giving it access to Pocket's messaging API through HTML injection. This vulnerability affects Firefox ESR < 45.6 and Firefox < 50.1.

Why it matters now

EPSS 0.02821 86th percentileScored 2026-11-07
Fix Fixed Firefox ESR (Mozilla): 45.6Firefox (Mozilla): 50.1Red Hat: 2 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
MozillaFirefox ESRbefore 45.645.6Patch availableCNA
MozillaFirefoxbefore 50.150.1Patch availableCNA
  • Firefox ESR VendorMozilla Affected before 45.6 Fixed in 45.6 Patch available CNA
  • Firefox VendorMozilla Affected before 50.1 Fixed in 50.1 Patch available CNA

CPE configurations NVD · 15

CPEVersionsRoleVendor
cpe:2.3:o:redhat:enterprise_linux_aus:7.3:*:*:*:*:*:*:*7.3VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_aus:7.4:*:*:*:*:*:*:*7.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:*5.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:7.3:*:*:*:*:*:*:*7.3VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:7.4:*:*:*:*:*:*:*7.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:7.5:*:*:*:*:*:*:*7.5VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:*5.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
  • cpe:2.3:o:redhat:enterprise_linux_aus:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_aus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:7.5:*:*:*:*:*:*:* Versions 7.5 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
Show 5 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:*5.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 45.6.0; before 50.1VulnerableMozilla
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 45.6.0; before 50.1 Vulnerable ·Mozilla

Remediation

  • Fix · CNA Firefox ESR (Mozilla) Fixed in 45.6
  • Fix · CNA Firefox (Mozilla) Fixed in 50.1

Red Hat 2 advisories

  • RHSA-2016:2973 Released 2016-12-21 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux Client (v. 7) thunderbird-45.6.0-1.el7_3
    • Red Hat Enterprise Linux Desktop (v. 5 client) thunderbird-45.6.0-1.el5_11, thunderbird-45.6.0-1.el5_11.i386
    • Red Hat Enterprise Linux Desktop (v. 6) thunderbird-45.6.0-1.el6_8
    • Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server) thunderbird-45.6.0-1.el5_11, thunderbird-45.6.0-1.el5_11.i386
    • Red Hat Enterprise Linux Server Optional (v. 6) thunderbird-45.6.0-1.el6_8
    • Red Hat Enterprise Linux Server Optional (v. 7) thunderbird-45.6.0-1.el7_3
    • Red Hat Enterprise Linux Workstation (v. 6) thunderbird-45.6.0-1.el6_8
    • Red Hat Enterprise Linux Workstation (v. 7) thunderbird-45.6.0-1.el7_3
  • RHSA-2016:2946 Released 2016-12-14 · Red Hat rating Critical
    firefox security update
    • Red Hat Enterprise Linux (v. 5 server) firefox-45.6.0-1.el5_11, firefox-45.6.0-1.el5_11.i386
    • Red Hat Enterprise Linux Client (v. 7) firefox-45.6.0-1.el7_3
    • Red Hat Enterprise Linux Client Optional (v. 7) firefox-45.6.0-1.el7_3
    • Red Hat Enterprise Linux Desktop (v. 5 client) firefox-45.6.0-1.el5_11, firefox-45.6.0-1.el5_11.i386
    • Red Hat Enterprise Linux Desktop (v. 6) firefox-45.6.0-1.el6_8
    • Red Hat Enterprise Linux Desktop Optional (v. 6) firefox-45.6.0-1.el6_8
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) firefox-45.6.0-1.el6_8
    • Red Hat Enterprise Linux Server (v. 6) firefox-45.6.0-1.el6_8
    • Red Hat Enterprise Linux Server (v. 7) firefox-45.6.0-1.el7_3
    • Red Hat Enterprise Linux Server Optional (v. 6) firefox-45.6.0-1.el6_8, firefox-45.6.0-1.el6_8.ppc
    • Red Hat Enterprise Linux Server Optional (v. 7) firefox-45.6.0-1.el7_3, firefox-45.6.0-1.el7_3.ppc
    • Red Hat Enterprise Linux Workstation (v. 6) firefox-45.6.0-1.el6_8
    • Red Hat Enterprise Linux Workstation (v. 7) firefox-45.6.0-1.el7_3
    • Red Hat Enterprise Linux Workstation Optional (v. 6) firefox-45.6.0-1.el6_8
    • Red Hat Enterprise Linux Workstation Optional (v. 7) firefox-45.6.0-1.el7_3

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Mozilla Firefox, Firefox ESR — RHSA-2016:2946

    10 records Highest priority Priority MEDIUM 6 MEDIUM, 4 LOW

    Other records, highest priority first

    • TI-2016-08019 Use after free in Mozilla FirefoxPriority MEDIUM 61
    • TI-2016-08018 Use after free in Mozilla FirefoxPriority MEDIUM 48
    • TI-2016-08013 Memory corruption in Mozilla FirefoxPriority MEDIUM 47
    Show all 10 records → Advisory →
  • Advisory ·

    Mozilla Firefox, Firefox ESR — RHSA-2016:2973

    7 records Highest priority Priority MEDIUM 5 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2016-08019 Use after free in Mozilla FirefoxPriority MEDIUM 61
    • TI-2016-08013 Memory corruption in Mozilla FirefoxPriority MEDIUM 47
    • TI-2016-08020 External resources that should be blocked when loaded by SVG images can bypass security…Priority MEDIUM 45
    Show all 7 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2016:2946
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2016:2946, RHSA-2016:2973
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2016:2946
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2016:2946, RHSA-2016:2973
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2016:2946, RHSA-2016:2973
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2016:2946
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2016:2946
Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server)Fixed RHSA-2016:2973
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2016:2946
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2016:2946
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2016:2946, RHSA-2016:2973
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2016:2946, RHSA-2016:2973
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2016:2946, RHSA-2016:2973
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2016:2946, RHSA-2016:2973
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2016:2946
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2016:2946

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-9901
  2. 2026-10-03 Alias added: GHSA-6g72-x2jp-6592

References

Patch 1

Advisory 5

  • TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
  • TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
  • TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
  • TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
See all 3444 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences